.weui_mask {
  position: fixed;
  z-index: 20;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.6);
}
.weui_mask_transparent {
  position: fixed;
  z-index: 1;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
.weui_mask_transition {
  display: none;
  position: fixed;
  z-index: 1;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0);
  transition: background .3s;
}
.weui_fade_toggle {
  background: rgba(0, 0, 0, 0.6);
}
